The Karbonn K40 poses a 2.4-inch TFT display offering comfortable viewing experience with a resolution of 240 x 320 pixels and a pixel density of 167ppi. It has been spotted with a 1.3MP camera at the back which supports digital zoom.

The Karbonn K40 sports a microSD slot which allows you to enjoy a maximum expandable memory of 16GB. It has dual SIM slots and can be used for exchanging files with other gadgets via USB port and Bluetooth.

The Karbonn K40 keeps the show running with a massive 2,800mAh Li-ion battery which is capable of rendering up to 18 hours of talktime and up to 1080 hours of standby time in 2G networks.

Verdict

The Karbonn K40 is apt for people who need to stay out of their home or office for a long period of time. It boasts of a massive 2,800mAh battery for serving this purpose. It also has a microSD slot expandable up to 16GB.